Home / 223,580.28-308,540.57-128,087.36

Finding the Fourth Proportional to 223,580.28, 308,540.57 and 128,087.36

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Solution

The fourth proportional to 223,580.28, 308,540.57 and 128,087.36 is: 176,760.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,580.28 : 308,540.57 = 128,087.36 : x
  2. Step 2: Convert to fraction form
    223,580.28/308,540.57 = 128,087.36/x
  3. Step 3: Cross multiply
    223,580.28x = 308,540.57 × 128,087.36
  4. Step 4: Simplify right side
    223,580.28x = 39,520,144,881.06
  5. Step 5: Solve for x
    x = 39,520,144,881.06/223,580.28
  6. Step 6: Final answer
    x = 176,760.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.